The Analysis Of Dynamic Response Of Blasting Ice Breaking To Embankment

Alternately in winter and spring season,a large of ice flow down in the Yellow River,it called the “WU KAI” River.In this time,the melting ice flood disasters occurred,such as ice jam and ice dam,which inflence along the Yellow River people’s production and life.Especially when the break-up of the ice in the river,the large ice down the river,the great dynamic pressure will make bridge,embankments and other buildings dameged.So it is particularly important to break the ice floe ling.At present,the effective way to deal with such disasters is explosive,but a huge amount of energe in the process of blasting,that is threat to the hydraulic structures,so it is particularly important to how to select the appropriate.This paper indroduces the principle of underwater explosion,the development process function,method of ANSYS/LS-DYNA.Through consulting a large number of date literature and then selecting the a approprite ice material and embankment material model,and establishing the three-dimensional finite element model,finilly achieved simulation analysis of the embankment under different explosive points.Two kinds of explosive model under ice and ice were established by ANSYS/LS-DYNA.The influence of the explosion on the embankment was studied under same explosive load and different explosive distance,and obtained the stress curve.Through the analysis of the results,the safe distance of explosive under ice and in ice are obtained respectively.This paper validates the reliablity of the numerical simulation method and provides a certain reference for the ice breaking equipments researth and development.